1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lara [203]
3 years ago
6

Plz show steps i will give 30 points

Mathematics
1 answer:
Elden [556K]3 years ago
7 0

50-degree temperature is 0 minutes to heat = 50/0 = 50

60-degree temp. is 1 minute to heat = 60/1 = 60

70-degree temp, is 2 minutes to heat = 70/2 = 35

80-degree temp. is 3 minutes to heat = 80/3 = 26 2/3

90-degree temp. is 4 minutes to heat = 90/4 = 22.5

100 degree temp. is 5 minutes to heat = 100/5 = 20

<u>Hope this Helps :)</u>

<u></u>

You might be interested in
F(x)=x^2+3x ... find f(2-a)
olga2289 [7]
(2-a)^2 + 3(2-a)




A^2 -2a + 4 + 6 -3a



A^2 -5a +10
7 0
3 years ago
Read 2 more answers
Use the standard norml distribution or the t-distribution to construct a 99% confidence interval for the population mean. Justif
dalvyx [7]

Answer:

E) we will use t- distribution because is un-known,n<30

the confidence interval is (0.0338,0.0392)

Step-by-step explanation:

<u>Step:-1</u>

Given sample size is n = 23<30 mortgage institutions

The mean interest rate 'x' = 0.0365

The standard deviation 'S' = 0.0046

the degree of freedom = n-1 = 23-1=22

99% of confidence intervals t_{0.01} =2.82  (from tabulated value).

The mean value = 0.0365

x±t_{0.01} \frac{S}{\sqrt{n-1} }

0.0365±2.82 \frac{0.0046}{\sqrt{23-1} }

0.0365±2.82 \frac{0.0046}{\sqrt{22} }

0.0365±2.82 \frac{0.0046}{4.690 }

using calculator

0.0365±0.00276

Confidence interval is

(0.0365-0.00276,0.0365+0.00276)

(0.0338,0.0392)

the mean value is lies between in this confidence interval

(0.0338,0.0392).

<u>Answer:-</u>

<u>using t- distribution because is unknown,n<30,and the interest rates are not normally distributed.</u>

4 0
3 years ago
What's the answer will give brainliest
raketka [301]

Answer:

2.964

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Factor x^3-4x^2+7x-28
puteri [66]

Answer:

(x−4)(x^2+7)

There you GO!

3 0
3 years ago
Prove the identity sin4x=2sin2xcos2x
Musya8 [376]
There is a trig identity called the sum of 2 angles for sin its<span>
sin(a+b)=sin(a)cos(b)+cos(a)(sin(b)
</span>
You will need to use it. So in your question split the 4x in 2 equal parts 2x and 2x
 <span>
</span><span>sin(4x)=sin(2x+2x)

</span>Now using the expansion above you will get

<span>sin(2x+2x)=sin(2x)×cos(2x)+cos(2x)×sin(2x)

</span>And it will simplify to 

<span><span>2sin(2x)cos(2x)

I hope this helps you! Good luck :)</span></span>
5 0
3 years ago
Read 2 more answers
Other questions:
  • 2+2<br> Please help very hard
    11·1 answer
  • College algebra online is not for me Can someone help me understand these questions
    11·1 answer
  • How many terms are in the expression shown? <br><br> 2n + 5 – 3p + 4q<br><br> 1<br> 2<br> 3<br> 4
    13·2 answers
  • 6(x - 6) +2x = 6(2 - 3x) + 4x - 2x
    12·1 answer
  • A study has demonstrated that the more television a person watches, the lower that person’s level of physical fitness. However,
    15·1 answer
  • Using the quadratic formula, the solutions to a quadratic equation are given by (equation is in image)
    12·1 answer
  • Yuri had 50 ballons, She gave 25 to Kelly and got 5 more from Jenny. he then gave Lucas 10. 5 more ballons flew away, how much d
    10·2 answers
  • Suppose a charity received a donation of $19.2 million. If this represents 36% of the charity's donated funds, what is the total
    10·1 answer
  • Plz help will give BRAINLIEST
    10·1 answer
  • Anyone help ASAP pls!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!